shotwell-video-thumbnailer fails to gen thumbnails: Refs #7258
shotwell-video-thumbnailer fails to gen thumbnails: Refs #7258

Removing bpp and depth params from gstreamer call, as
recommended at https://bugzilla.gnome.org/show_bug.cgi?id=708034#c4

ritchiewilson/shotwell,abrauchli/shotwell,abrauchli/shotwell,ritchiewilson/shotwell,abrauchli/shotwell,jimbonator/shotwell,ritchiewilson/shotwell,jimbonator/shotwell,jimbonator/shotwell